X = int(input())

if X in range(400,600):
  print(8)
elif X in range(600,800):
  print(7)
elif X in range(800,1000):
  print(6)
elif X in range(1000,1200):
  print(5)
elif X in range(1200,1400):
  print(4)
elif X in range(1400,1600):
  print(3)
elif X in range(1600,1800):
  print(2)
else:
  print(1) X = int(input()) X int(input()) int input() input if X in range(400,600):
  print(8)
elif X in range(600,800):
  print(7)
elif X in range(800,1000):
  print(6)
elif X in range(1000,1200):
  print(5)
elif X in range(1200,1400):
  print(4)
elif X in range(1400,1600):
  print(3)
elif X in range(1600,1800):
  print(2)
else:
  print(1) X in range(400,600) X range(400,600) range 400 600 print(8) print 8 elif X in range(600,800):
  print(7) X in range(600,800) X range(600,800) range 600 800 print(7) print 7 elif X in range(800,1000):
  print(6) X in range(800,1000) X range(800,1000) range 800 1000 print(6) print 6 elif X in range(1000,1200):
  print(5) X in range(1000,1200) X range(1000,1200) range 1000 1200 print(5) print 5 elif X in range(1200,1400):
  print(4) X in range(1200,1400) X range(1200,1400) range 1200 1400 print(4) print 4 elif X in range(1400,1600):
  print(3) X in range(1400,1600) X range(1400,1600) range 1400 1600 print(3) print 3 elif X in range(1600,1800):
  print(2) X in range(1600,1800) X range(1600,1800) range 1600 1800 print(2) print 2 print(1) print 1 X = int(input()) int(input()) X
X = int(input())

if X in range(400,600):
  print(8)
elif X in range(600,800):
  print(7)
elif X in range(800,1000):
  print(6)
elif X in range(1000,1200):
  print(5)
elif X in range(1200,1400):
  print(4)
elif X in range(1400,1600):
  print(3)
elif X in range(1600,1800):
  print(2)
else:
  print(1)